GB243218A - Improvements in or relating to reduction gears for use in adjusting radio tuning instruments - Google Patents

Improvements in or relating to reduction gears for use in adjusting radio tuning instruments

Info

Publication number
GB243218A
GB243218A GB780225A GB780225A GB243218A GB 243218 A GB243218 A GB 243218A GB 780225 A GB780225 A GB 780225A GB 780225 A GB780225 A GB 780225A GB 243218 A GB243218 A GB 243218A
Authority
GB
United Kingdom
Prior art keywords
friction
relating
reduction gears
radio tuning
rim
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB780225A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SANDFORD FREDERICK WOODELL
Burndept Ltd
Original Assignee
SANDFORD FREDERICK WOODELL
Burndept Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SANDFORD FREDERICK WOODELL, Burndept Ltd filed Critical SANDFORD FREDERICK WOODELL
Priority to GB780225A priority Critical patent/GB243218A/en
Publication of GB243218A publication Critical patent/GB243218A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
    • H03J1/06—Driving or adjusting arrangements; combined with other driving or adjusting arrangements, e.g. of gain control
    • H03J1/14—Special arrangements for fine and coarse tuning

Landscapes

  • Transmitters (AREA)

Abstract

243,218. Burndept, Ltd., Phillips, C. F., and Woodell, S. F. March 23, 1925. Friction gearing. - An adjusting device for transmitting motion at a reduced speed to the rotary part, such as a condenser, rheostat or inductance coil, of a wireless set comprises a knob 3 on the shaft of which is a friction rim 5 engaging friction planet pinions 7 which engage a fixed rim 4a and are mounted on a carrier 7b fixed to the driven shaft 1. The planet carrier consists of spaced radial arms 7a between which the planet pinions are mounted; the latter consist of pairs of wished spring washers mounted on screws 10<a> passing through slots in an inverted metal dish 10 provided with a scale.
GB780225A 1925-03-23 1925-03-23 Improvements in or relating to reduction gears for use in adjusting radio tuning instruments Expired GB243218A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB780225A GB243218A (en) 1925-03-23 1925-03-23 Improvements in or relating to reduction gears for use in adjusting radio tuning instruments

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB780225A GB243218A (en) 1925-03-23 1925-03-23 Improvements in or relating to reduction gears for use in adjusting radio tuning instruments

Publications (1)

Publication Number Publication Date
GB243218A true GB243218A (en) 1925-11-26

Family

ID=9840018

Family Applications (1)

Application Number Title Priority Date Filing Date
GB780225A Expired GB243218A (en) 1925-03-23 1925-03-23 Improvements in or relating to reduction gears for use in adjusting radio tuning instruments

Country Status (1)

Country Link
GB (1) GB243218A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2468314A (en) * 1947-03-17 1949-04-26 Alvin R Vogel Steering system
US3724281A (en) * 1971-05-27 1973-04-03 E Dorchester Vernier control knob

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2468314A (en) * 1947-03-17 1949-04-26 Alvin R Vogel Steering system
US3724281A (en) * 1971-05-27 1973-04-03 E Dorchester Vernier control knob

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